<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <title>Document</title>
  <style>
    
  </style>
</head>
<body>
  
</body>
<script>

  // var arr1 = [34,56,78,12];
  // var arr2 = new Array(34,56,78,12);

  // console.log(arr1);
  // console.log(arr2);
  
  // console.log(arr2 === arr1);




  var arr1 = ["5"];
  var arr2 = new Array("5");

  console.log(arr1);
  console.log(arr1.length);
  
  console.log(arr2);
  console.log(arr2.length);

  console.log(arr2 === arr1);
  
</script>
</html>